slick

问题 I have been learning scala, playframework and slick, but i have found a problem. I am trying to make a simple CRUD, with a list controllers that receives a custom filter field, some pagination info (page size and number) and a Seq of string tuples with the field name and the order (asc or desc), and everything is working fine, except for the order by seq, i can not make the order by dynamic. I got the basic structure from Scadiddle blog. So, the basic code is as follows: I have my basic color

问题 In the past I have used Slick to access a Vertica database in a server. I recently upgraded my version of Slick from 2.0 to 3.1. Since the upgrade, I am encountering an error (stack trace below). The error indicates that the slick driver cannot be found. According to the Slick 3.2.1 docs, "Other SQL databases can be accessed right away with a reduced feature set". What I am wondering is - Is it still possible to use an "Other" type of database from those directly supported by slick? If so,

问题 I am trying to follow the slick2 examples using MySql. however when trying to connect to the database I am getting end exception import scala.slick.driver.MySQLDriver.simple._ import slickTest.DB.SuppliersEntity object slickTestDB { def main(args: Array[String]) { println("CreateDb!") val schemaName = "slickTest" val conn_str = "jdbc:mysql://localhost:3306/" + schemaName val database = Database.forURL(conn_str,user="",password="",driver="com.mysql.jdbc.Driver") } } getting this exception

问题 I'm using slick in a scala project to query some tables. //define table object Addresses extends Table[Address]("assetxs.address") { def id = column[Int]("id", O.PrimaryKey) def street = column[String]("street") def number = column[String]("number") def zipcode = column[String]("zipcode") def country = column[String]("country") def * = id ~ street ~ number ~ zipcode ~ country <> (Address, Address.unapply _) } If I use any query of this table it does not work (it says it cannot find my table)

问题 I'm trying to get the max version number from a table. My table contents are: id externalId name version 1 10 n1 1 2 65 n2 2 3 10 n3 2 4 77 n4 1 In the table above, we have rows that has the maximum version as 2, so my query has to return this maximum version row for the given externalId that I pass into my query. I'm now stuck up with writing the Slick version of it. Any suggestions, pointers? This is what I have so far: (I pass in the externalId) for { myTable1 <- myTable1Elems if myTable1

问题 I have my custom authenticated action that is like def Authenticated(rights: String*) = new ActionBuilder[MyAuthenticatedRequest] { *** } In my controller I use this action to check the user has the right to view the page def password = Authenticated(UserRights.USER) { implicit request: MyAuthenticatedRequest[_] => Users.findById(request.account.id) match { case Some(user) => Ok(views.html.settings.password(frontUser, user)) case _ => NotFound } } My oject Users uses slick to retrieve the

问题 I use flowing code for upsert list items case class Item(id: String, text: String) class Items(tag: Tag) extends Table[Item](tag, "items"){ ... } val tbl = TableQuery[Items] def insertItems(items: List[Item]):Future[Int] = { val q = DBIO.sequence(items.map(tbl.insertOrUpdate).toSeq).map(_.sum) db.run(q) } For items list with length 2000, upsert takes ~10 seconds. It's too long... I think, most part time takes compiling queries. How should I rewrite insertItems for acceleration it? 回答1: Use

问题 I have an idea how my data access layer with Scala Slick should look like, but I'm not sure if it's really possible. Let's assume I have a User table which has the usual fields like id, email, password, etc. object Users extends Table[(String, String, Option[String], Boolean)]("User") { def id = column[String]("id", O.PrimaryKey) def email = column[String]("email") def password = column[String]("password") def active = column[Boolean]("active") def * = id ~ email ~ password.? ~ active } And I

问题 I've been working with lwjgl for some time, and recently I've decided to switch from fixed function pipeline to shaders. So, the first thing when I'm starting my program, I set the ContextAttrib(3, 2) so I will be using GL 3.2+. The problem is that when I switch on higher version of GL a lot of functions become unsupported. Before switching to higher GL, I've used Slick's font (TrueTypeFont) to render the text I needed, but now the drawString method of TrueTypeFont has an unsupported function

问题 I use Slick 1.0.0-RC1. I have this definition for table object: object ProductTable extends Table[(Int, String, String, String, Double, java.sql.Date, Int, Option[Int], Int, Boolean)]("products") { def id = column[Int]("productId", O.PrimaryKey, O.AutoInc) def title = column[String]("title") def description = column[String]("description") def shortDescription = column[String]("shortDescription") def price = column[Double]("price") def addedDate = column[java.sql.Date]("addedDate") def brandId